<select name="fac_are_id">
    
    <option value=""></option>

    <?php
	
    $sqlfac_are_id = "SELECT * FROM facilidadearea ORDER BY fac_are_nome";
    $resfac_are_id = sql($sqlfac_are_id);

    while($linhafac_are_id = mysql_fetch_array($resfac_are_id)){
    ?>

    <option value="<?=$linhafac_are_id['fac_are_id'];?>" <?php if($linhafac_are_id['fac_are_id'] == $fac_are_id) { echo "selected"; } ?>><?=$linhafac_are_id['fac_are_nome'];?></option>

    <?php } ?>

</select>